关于生态环境需水量若干问题的探讨

A Research on Issues of Water Demand for Eco-logical Environment

生态环境需水量是指一个特定区域内的生态系统的需水量。对其计算,国内外已有一些方法。但水土 保持需水量不必作为生态环境需水量进行单独的计算,河道水沙平衡需水量也不宜纳入生态环境需 水量。

Water demand for ecological environment should be that for the ecological system in a specific district. There have already been some methods about its calculation in China and abroad. However , the author's thought is that it is not necessary to make individual calculation taking water demand for soil and water conservation as that for the ecological environment. And the author suggests that it is not suitable to bring water demand for river water and sand balance into that for the ecological environment.